[QA] Sometimes WETH transfer from Unichain to Ethereum fails with "missing revert data" error

[tsadovska]

Describe the current behavior in detail

Reproducible on https://preview.portalbridge.com/cdab46534d/.

Steps:

1. Select Unichain as source chain (MetaMask wallet auto-connects)
2. Select WETH token as source token (contract address: 0x22673E61Ed806888aa6c2Da60335f6A37Fd287Af)
3. Select Ethereum as destination chain (MetaMask wallet auto-connects)
4. Select ETH token as destination token
5. Enter amount, 0.00001
6. Click on "Review transaction" button
7. Click on "Confirm transaction" button
8. Check if transaction has started

Actual result: Transaction fails.

Wormhole Connect: error completing transfer Error: missing revert data (action="estimateGas", data=null, reason=null, transaction={ "data": "0x095ea7b30000000000000000000000003ff72741fd67d6ad0668d93b41a09248f4700560000000000000000000000000000000000000000000000000000009184e72a000", "from": "0x9631288F4050F7CFbf77B77f8540DeCF6cfC7012", "to": "0x22673E61Ed806888aa6c2Da60335f6A37Fd287Af" }, invocation=null, revert=null, code=CALL_EXCEPTION, version=6.13.5)
    at makeError (pb-index-BkaAVWec.js:267:20032)
    at getBuiltinCallException (pb-index-BkaAVWec.js:268:108727)
    at Ku.getBuiltinCallException (pb-index-BkaAVWec.js:268:109700)
    at pc.getRpcError (pb-index-BkaAVWec.js:268:214129)
    at pc.getRpcError (evm-Mwom3m1b-D864LcG6.js:7:1686)
    at pb-index-BkaAVWec.js:268:218070

Expected result: Transaction was started successfully.

Notes/ Attachments

Screen.Recording.2025-02-19.at.19.18.55.mov

[Marygka]

Hello @tsadovska
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